Energy
Energy of motion.
What is kinetic energy?
A push or a pull on an object.
What is a force?
There are this many types of simple machines.
What is six?
Materials that allow electricity to flow easily.
What are conductors?
A form of energy that travels in waves and allow us to see objects.
What is light?
Stored energy due to position or condition.
What is potential energy?
The force that slows objects moving across a surface.
What is friction?
This simple machine is a flat surface set at an angle used to raise objects.
What is an inclined plane?
Materials that resist or block the flow of electricity.
What are insulators?
When light bounces off a surface.
What is reflection?
Energy produced by vibrating objects and heard by our ears.
What is sound energy?
For every action, there is an equal and opposite _______.
What is reaction?
This simple machine has a wheel with a rope or cable used to lift objects.
What is a pulley?
A complete path that electricity travels through.
What is a circuit?
A smooth surface that reflects light to form an image.
What is a mirror?
Energy stored in food, fuel, or batteries.
What is chemical energy?
An object at rest stays ar rest unless acted upon by this.
What is an unbalanced force?
Turning a doorknob is an example of this simple machine.
What is a wheel and axle?
This device opens or closes a circuit.
What is a switch?
When light bends as it passes from one material to another.
What is refraction?
Heat energy is also called this type of energy.
What is thermal energy?
The formula for Newton's Second Law.
What is Force = mass x acceleration (F=ma)?
Simple machines make work easier by changing force or this.
What is distance (or direction)?
A giant electrical discharge that occurs during storms.
What is lightning?
A mirror that curves outward and makes objects look smaller.
What is a convex mirror?